Whakaoti mō x
x\leq -\frac{1}{13}
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Tohaina
Kua tāruatia ki te papatopenga
4x-16x+2\geq x+3
Whakareatia ngā taha e rua o te whārite ki te 2. I te mea he tōrunga te 2, kāore e huri te ahunga koreōrite.
-12x+2\geq x+3
Pahekotia te 4x me -16x, ka -12x.
-12x+2-x\geq 3
Tangohia te x mai i ngā taha e rua.
-13x+2\geq 3
Pahekotia te -12x me -x, ka -13x.
-13x\geq 3-2
Tangohia te 2 mai i ngā taha e rua.
-13x\geq 1
Tangohia te 2 i te 3, ka 1.
x\leq -\frac{1}{13}
Whakawehea ngā taha e rua ki te -13. I te mea he tōraro a -13, ka huri te ahunga koreōrite.
Ngā Tauira
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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Whakaurunga
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Ngā Tepe
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